
.ghost-button{
    display: block;
    font-family:"微软雅黑";
    text-decoration: none;
    color:#2ca18c;
    font-weight: bold;
    line-height:50px;
    padding-left:20px;
    font-size:20px;
    width: 180px;
    height:50px;
    margin:70px auto;
    background: url("../img/return.png") no-repeat 130px center;
    /*border:2px solid rgba(44,161,140,0.6);*/
    border:2px solid rgba(255,255,255,0.6);
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    -o-box-sizing:border-box;
    -webkit-box-sizing: border-box;
    transition: 0.4s ease;
    -moz-transition: 0.4s ease;
    -o-transition: 0.4s ease;
    -webkit-transition: 0.4s ease;
}

.line{
    position:absolute;
    /*background:#2ca18c;*/
    background: #fff;
    display: block;
}
.line-top{
    width:0;
    height:2px;
    margin-left: -122px;
    margin-top: -2px;
    transition: 0.4s ease;
    -moz-transition: 0.4s ease;
    -o-transition: 0.4s ease;
    -webkit-transition: 0.4s ease;
}
.line-right{
    width:2px;
    height:0;

    margin-left:156px;
    margin-top:148px;
    transition: 0.4s ease;
    -moz-transition: 0.4s ease;
    -o-transition: 0.4s ease;
    -webkit-transition: 0.4s ease;
}
.line-bottom{
    width:0;
    height:2px;
    margin-top:46px;
    margin-left:252px;
    transition: 0.4s ease;
    -moz-transition: 0.4s ease;
    -o-transition: 0.4s ease;
    -webkit-transition: 0.4s ease;
}
.line-left{
    width:2px;
    height:0;
    margin-left:-22px;
    margin-top:-102px;
    transition: 0.4s ease;
    -moz-transition: 0.4s ease;
    -o-transition: 0.4s ease;
    -webkit-transition: 0.4s ease;
}

.icon:hover{
    transform:rotate(360deg) scale(1.2,1.2);
    -moz-transform: rotate(360deg) scale(1.2,1.2);
    -ms-transform:rotate(360deg) scale(1.2,1.2);
    -o-transform: rotate(360deg) scale(1.2,1.2);
    -webkit-transform: rotate(360deg) scale(1.2,1.2);
}
.button:hover{
    border-color: rgba(255,255,255,1);
}

.ghost-button:hover .line-top{
    margin-left:-22px;
    width:180px;
}
.ghost-button:hover .line-right{
    margin-top:-2px;
    height:50px;
}
.ghost-button:hover .line-bottom{
    margin-left:-22px;
    width:180px;
}
.ghost-button:hover .line-left{
    margin-top:-2px;
    height:50px;
}

.ghost-button:hover {
    background-position: 140px center;
}